Micro-nano modified super bright polyester fibers and preparation method thereof

A bright polyester, micro-nano technology, applied in the field of polyester fibers, can solve the problems of no substantial progress, complex process, low specifications, etc.

Active Publication Date: 2014-11-05
福建百宏聚纤科技实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing fine denier large bright polyester fiber is complex and technically difficult
The product specifications are low, and the quality uniformity and stability are poor, which cannot meet the requirements of high-speed warping
In the past ten years, my country's chemical fiber technology and industry have increased the development of fine denier, especially ultra-fine polyester filaments. and the complexity of engineering collaborative control and other major technical problems, no substantial progress has been made

Method used

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  • Micro-nano modified super bright polyester fibers and preparation method thereof
  • Micro-nano modified super bright polyester fibers and preparation method thereof
  • Micro-nano modified super bright polyester fibers and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A preparation method of micro-nano modified bright polyester fiber, the specific process is:

[0045] (1) Amination treatment of nano barium sulfate

[0046] Dissolve nano barium sulfate in ethanol solvent, the concentration of nano barium sulfate in ethanol is 10kg / m 3 , the pH of the ethanol solvent is controlled to be 8, and then aminopropyltriethoxysilane is added for reaction; the aminopropyltriethoxysilane is 1% of the mass of nano barium sulfate, the reaction temperature is 60°C, and the reaction time is 60-80min Carry out centrifugation after the completion of the reaction, and vacuum dry the solid to prepare aminated nano-barium sulfate;

[0047] (2) spinning

[0048] Under the protection of nitrogen, according to the molar ratio of terephthalic acid and ethylene glycol in the raw material is 1: 1.2, the added amount of aminated nano-barium sulfate is 5% of the mass fraction of terephthalic acid for batching; the aminated nano-barium sulfate Barium sulfate is ...

Embodiment 2

[0055] A preparation method of micro-nano modified bright polyester fiber, the specific process is:

[0056] (1) Amination treatment of nano barium sulfate

[0057] Dissolve nano barium sulfate in ethanol solvent, the concentration of nano barium sulfate in ethanol is 10kg / m 3 , the pH of the ethanol solvent is controlled to be 8, and then aminopropyltriethoxysilane is added for reaction; the aminopropyltriethoxysilane is 1% of the mass of nano barium sulfate, the reaction temperature is 60°C, and the reaction time is 60-80min Carry out centrifugation after the completion of the reaction, and vacuum dry the solid to prepare aminated nano-barium sulfate;

[0058] (2) Chip spinning

[0059] (1) Heat the CBT powder to 180-200°C, then add bio-based glutaric acid, and at the same time add the catalyst dihydroxyalkyl tin chloride to carry out carboxylation of CBT, the reaction time is 20-30min, and carboxyl Acid-terminated CBT initial polymer;

[0060] Described catalyst is dihy...

Embodiment 3

[0079] A preparation method of micro-nano modified bright polyester fiber, the specific process is:

[0080] (1) Amination treatment of nano barium sulfate

[0081] Dissolve nano barium sulfate in ethanol solvent, the concentration of nano barium sulfate in ethanol is 40kg / m 3 , the pH of the ethanol solvent is controlled to be 9, and then aminopropyltriethoxysilane is added to react; aminopropyltriethoxysilane is 0.5% of the quality of nano-barium sulfate, the reaction temperature is 60 ° C, and the reaction time is 80min; Carry out centrifugation after completion, vacuum-dry the solid to prepare aminated nano-barium sulfate;

[0082] (2) spinning

[0083] Under the protection of nitrogen, according to the molar ratio of terephthalic acid and ethylene glycol in the raw material is 1: 1.6, the added amount of aminated nano barium sulfate is 5% of the mass fraction of terephthalic acid for batching; the aminated nano Barium sulfate is added to the ethylene glycol raw materia...

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Abstract

The invention relates to micro-nano modified super bright polyester fibers, and a preparation method thereof. The preparation method comprises the following steps of (1) preparing aminated nano barium sulfate and (2) spinning: firstly carrying out esterification reaction, then carrying out copolycondensation and finally carrying out a final polycondensation reaction to prepare the micro-nano modified super bright polyester, performing melt spinning on the micro-nano modified super bright polyester to obtain the micro-nano modified super bright polyester fibers. By modifying surfaces of barium sulfate particles and designing a barium sulfate-ethanediol pulping process, the polycondensation is guaranteed to be performed stably and particles are uniformly distributed in the polyester fibers. A surface modification technology for barium sulfate micro-nano inorganic particles is developed, so that highly dispersed barium sulfate master batches and in-situ polymerization addition technology are formed, and finally high-quality fine denier super bright polyester fibers with improved gloss, color and mechanical properties are prepared.

Description

【Technical field】 [0001] The invention relates to the technical field of polyester fibers, in particular to a micro-nano modified bright polyester fiber and a preparation method thereof. 【Background technique】 [0002] my country is a big country of chemical fiber. The production and usage of chemical fiber have reached 60% of the world, of which more than 80% is polyester. Fine denier is the general trend of chemical fiber technology development. The process of high-quality fine-denier bright polyester fiber is complicated and technically difficult, and it mainly depends on imports. High-quality fine denier bright polyester fiber products mainly have high evenness and long-wave unevenness, poor dyeing uniformity and stability, and low post-processing efficiency, which cannot meet the requirements of high-speed warping. This project develops the surface modification technology of micro-nano-level inorganic particles barium sulfate, forms highly dispersed barium sulfate mast...

Claims

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Application Information

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IPC IPC(8): D01F6/92D01F1/10D01D5/08D01D5/253D01D4/02
Inventor 叶敬平蔡振坤叶明军
Owner 福建百宏聚纤科技实业有限公司
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